package com.atguigu.bio;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * @author: 叶子
 * @date: 2022/01/14 11:24
 **/
public class BIOServer {
    public static void main(String[] args) throws IOException {
//        线程池机制
//        1、创建一个线程池
        ExecutorService newCachedThreadPool = Executors.newCachedThreadPool();
//        2、如果有客户端连接，就创建一个线程，与之通讯（单独写一个方法）
//       创建ServerSocket
        ServerSocket serverSocket = new ServerSocket(6666);
        System.out.println("服务器启动");
        while (true) {
            System.out.println("线程信息 id=" + Thread.currentThread().getId() + "名字=" + Thread.currentThread().getName());
//            监听，等待客户端连接、
            System.out.println("等待连接....");
            final Socket socket = serverSocket.accept();
            System.out.println("连接到一个客户端");
//            创建一个线程，与之通讯
            newCachedThreadPool.execute(new Runnable() {
                public void run() {//重写run方法
//                    可以和客户端通讯
                    handler(socket);
                }
            });
        }
    }

    //    编写一个handler方法，和客户端通讯
    public static void handler(Socket socket) {
        byte[] bytes = new byte[1024];
//        通过socket 获取输入流
        try {
            System.out.println("线程信息 id=" + Thread.currentThread().getId() + "名字=" + Thread.currentThread().getName());
            InputStream inputStream = socket.getInputStream();
//            循环读取客户端发送的数据
            while (true) {
                System.out.println("线程信息 id=" + Thread.currentThread().getId() + "名字=" + Thread.currentThread().getName());
                System.out.println("read....");
                int read = inputStream.read(bytes);
                if (read != -1) {
                    System.out.println(new String(bytes, 0, read));//输出客户端发送的数据
                } else {
                    break;
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            System.out.println("关闭和Client的连接");
            try {
                socket.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}